Justicia gendarussa

Burm.f. (1768)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Lamiales Family: Acanthaceae Genus: Justicia

Description

Key Characters:

Growth Form: Subshrubs 0.7–1.5 cm tall, much branched.

Stems: Stems subterete, swollen at nodes, glabrous.

Roots:

Leaves: Leaves simple. Opposite. Blades narrowly lanceolate, 6-10 × 1-1.5 cm. Apex acute to shortly acuminate. Base cuneate to attenuate. Surfaces glabrous. Margins subsinuate. Secondary veins 5-8 on each side of midvein. Petioles 3-10 mm. Stipules absent.

Flowers: Spikes terminal or axillary, 3-12 cm, interrupted, usually in a leafy panicle; peduncle 0.5-1.5 cm; bracts triangular, 2-6 × 1-2.5 mm, basal ones longer than calyx then gradually smaller with apical-most ones shorter than calyx, margin ciliate, apex acute; bracteoles elliptic to linear-lanceolate, ca. 3 × 1 mm, margin ciliate, apex acute. Calyx ca. 5 mm, 5-lobed; lobes linear-lanceolate, 3-4 × ca. 0.5 mm, subequal, apex acuminate. Corolla creamy white, 1.2-1.5 cm; tube basally cylindric and ca. 2 mm wide for 8-9 mm; lower lip violet dotted basally, cuneate-obovate, 6-10 mm broad, 3-lobed, lobes oblanceolate and 3-5 × ca. 3.5 mm; upper lip violet blotched, triangular, ca. 7 × 3.5 mm, 2-cleft. Stamens exserted; filaments 3-6 mm, glabrous; anther thecae oblong, ca. 1.2 mm, superposed, lower one spurred at base, upper one muticous. Ovary superior, glabrous; style ca. 1 cm, glabrous; stigma capitate, shortly 2-lobed.

Fruit: Capsules clavate; ca. 1.2 cm.

Ploidy: 2n = 28; 30

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

O'ahu Only found in cultivation
Maui Naturalized

Dispersal Agents


Pollinators

Specimens

Bibliography

Name Published In: Fl. Indica: 10 (1768)

Other References

Frohlich & Lau 2020:55 (NEWNAT/EM, DESCR)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Justicia gendarussa Burm.f. Keanae, Ching's Pond, in rocky stream bed/bank. Wet lowland, stream, in stream bed amongst boulders with Ardisia elliptica and Polygala paniculata. PRESERVED_SPECIMEN Starr, F. 141027-02 Maui BISH 10/27/2014
2 Justicia gendarussa Burm.f. Honolulu, Palama St. home Cultivated shrub in yard, grown for +/- 20 years. PRESERVED_SPECIMEN Chun, E. Collector Number: s.n. Oahu BISH 10/17/2000
3 Justicia gendarussa Burm.f. Keanae, Ching's Pond, in rocky stream bed/bank Wet lowland, stream bed PRESERVED_SPECIMEN F. Starr & K. Starr 141027-02 Maui US 10/27/2014
4 Justicia gendarussa Burm.f. Keanae, Ching's Pond, in rocky stream bed, bank amongst boulders. Wet lowland, stream. PRESERVED_SPECIMEN Forest Starr Starr-141027-02 Maui PTBG 10/27/2014
5 Justicia gendarussa Burm.f. keanae, ching's pond, in rocky stream bed/bank Wet lowland, stream bed PRESERVED_SPECIMEN f. starr & k. starr 141027-02 Maui US 10/27/2014
6 Justicia gendarussa Burm.f. Honolulu, Palama St. home Cultivated shrub in yard, grown for +/- 20 years. PRESERVED_SPECIMEN Chun, E. s.n. Oahu BISH 10/17/2000
7 Justicia gendarussa Burm.f. honolulu, palama st. home PRESERVED_SPECIMEN chun, e. collector number: s.n. Oahu BISH 10/17/2000
8 Justicia gendarussa Burm.f. East Maui, Hana District, Honomanu Wet lowland, stream bed PRESERVED_SPECIMEN F. Starr & K. Starr 141027-02 Maui HAPI 10/27/2014